Window
Launch weather for high-power rocketry — surface wind against the limit, winds aloft to waiver altitude, and a multi-day outlook for any field.
Window shows the weather a flyer needs to decide whether to fly: surface wind and gusts against the 20 mph NFPA/NAR/Tripoli limit, winds aloft by true height up to waiver altitude, density altitude, storm potential (CAPE), cloud ceiling and visibility, air quality, active NWS alerts, and a multi-day outlook — for any launch field, in one glanceable view.
It's purely informational: it takes no rocket parameters and produces no go/no-go verdict. It surfaces the data and the reference lines — the wind limit, the winds-aloft profile, the ceiling — and leaves the call to you and your field's rules. Every figure carries its source and valid time, fetched live in your browser.
What it does
Surface wind vs the limit
Wind, gust, and direction against the 20 mph launch limit, with a steadiness read and a cross-check against the nearest station's observed wind.
Winds aloft
Wind speed and direction by true height, surface up to waiver altitude — flagging the strongest shear layer and the mean wind, and turning your descent rate and apogee into a landing-drift distance.
Storm potential
Convective instability (CAPE) now and at the day's peak, in the bands meteorologists use.
Density altitude
How thin the air is — which sets thrust and descent — alongside temperature, sky, and a pressure tendency.
Calm windows
An hourly wind timeline that surfaces upcoming calm windows; drag a fly-time slider to any hour and the whole view follows.
Sky, ceiling & air quality
Observed ceiling and visibility from the nearest station — read as a go/no-go gate against your apogee — plus US AQI and smoke/dust particulate.
Multi-day outlook
A ~7-day view with each day's calmest flyable window, set against the field's seasonal normal.
Field briefing
Copy a plain-text conditions summary for the club chat, or a link to the exact view.
Try it out
Free to use, no account required.